Global Warming

Essay specific features

 

Issue:

Science

 

Written by:

Rebecca R

 

Date added:

April 9, 2011

 

Level:

 

Grade:

B

 

No of pages / words:

2 / 451

 

Was viewed:

8181 times

 

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Essay content:

After completing this lab we will be able to find the density of 2 liquids (water and rubbing alcohol) and a solid (block of wood). Materials: • Goggles • Water • Another liquid (Rubbing Alcohol) • A block of wood • A rock • 2 10 mL graduated cylinders • 100 mL graduated cylinder • Ruler • Dropper pipettes • Electronic balance Formula: Density=mass/volume Densities: Water- M= 7...
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2mL D= 30g/ml Questions: 1. Calculate your % error for the density of the second liquid. 3.67% 2. Why does a helium balloon rise? The helium in the balloon is less dense than the air outside, causing the balloon to float, or rise. 3. Why does ice float in water? A substance floats if it less dense or has less mass...
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